Balanced window-sash



E. MASSIS.

BALANCED WINDOW SASH.

APPHCATION man JULY 16.1919.

2 SHEETS-SHEET I.

" Flg 1 Inventor. Jmz'le M60561)". Zfm

Patented July 27, 1920.

E. MASSIS.

BALANCED WINDOW SASH. APPLICATION man JULY 16.1919.

1,347,703 Patented July 27, 1920.

6 2 SHEETSSHEET 2.

UNITED STATES PATENT OFFICE.

EMILE MASSIS, OF LONDON, ENGLAND.

BALANCED W'INDOW-SASH.

Specification for Design.

Application filed July 16, 1919. Serial No. 311,291.

To all whom it may concern:

Be it known that I EMILE MASSIS, a citizen of the French epublic, residing at London, England, have invented certain new and useful Improvements in Balanced balance as large a proportion of the weight as desired or to overbalance the weight and therefore normally to close the window.

Other objects of the invention are to enable the balancing springs to work under favorable conditions by mounting them on guide rods or tubes so as to prevent distortion, and to enable lubricant to be retained for the sliding surfaces.

The invention is designed for application to existing constructions, all the necessary working parts being accommodated in the usual well or opening into which the window sash descends, with an operating device projecting to within reach of the occupants of the vehicle.

Referring to the accompanying drawings, Figure l is a front elevation showing a carriage door fitted with the present invention, the inside panel of the door being removed.

Fig. 2 is a side elevation in section, showing a double or auxiliary lazy tongs.

Fig. 3 shows an alternative form of handle for raising the window and Fig. 4: shows another arrangement employing a strap.

Fig. 5 is a detail showing the use of tension springs applied to the lazy tongs.

Fig. 6 shows compression springs incased in tubes.

According to the present invention, a set of lazy tongs levers is pivotally secured at bottom to a bracket inside the well or opening into which the window sash descends and at top to sliders arranged to travel upon a cross rod or within tubes attached to the window sash. These sliders are pivoted to the tops of the lazy tongs and as they move outwardly extend or compress springs which tend to force inwardly the sliders and the tops ofthe lazy tongs, and

thereby to balance the weight of the window-sash.

The set of lazy tongs a a is pivoted at bottom to bracket 1) and at top to sliders c 0 designed totravel on cross rod 03, Figs. 1 and 2. Thesliders c c are pivoted to the tops of the'members of the lazy tongs a a and are constantly pressed inwardly by springs e. The-connection of the lazy tongs (1. 11 with the pivot b of bracket 6 is effected through links fjfwhich are pivoted to and project inwardly from the bottom members .a. a. The auxiliary-lazy tongs h h are also mounted on the'pivot b and their lower links 9- 9 move always parallel with the bottom members f f. The pivots 2' serving Patented July 27, 1920.

for both setsof lazy tongs a f and .g k are T coaxial. The connecting rod '.is secured to the top of the auxiliary lazy tongs h h and by means of this rod j the window is carried by the cross rod 03 can be raised or lowered.

By moving this rod 9' up or down, the auxiliary lazy tongs h h-will be extended or closed up and at the same time the lazy tongs a a which supports the window, will also be raised-or lowered. If desired, the

auxiliary lazyton s may be suppressed, andthe operating ro j secured direct to the pivot of the main levers a a, as seen in ny suitable form of handle may be employed to operate the rod j. In Figs. 1 and 2 I have shown a crank handle Z pivoted in a plate upon the door and provided with a pinion m meshing with a rack 12. secured to rod j. The rod j travels through a'guide 7' and the rack is supported by a roller m on the side opposite to the pinion 121. By turning the'crank Z the rod j will be depressed or raised and the window can then be locked if required by any suitable catch or other means. In Fig. 3, I have shown an alternative form of handle. The rod is cranked at 9" to pass through the inside panel of the door. A spring 11 normally presses outwardly a handle 9 which can slide on the part 7" and this handle is fitted with a neck 9' which at its extremity carries a. transverse pin 1* resting on top of the cranked portion 9'. The door panel is slotted as at s to allow the handle g and part j to slide in the panel so that the pin 1' can engage under serrations t in a pair of plates arranged one at each side of the slot 8: the serrations may be arranged as shown to hold the sash down, when the weight is overbalanced by the springs. The dotted lines in Fig. 3 show other positions of the handle 9 and cranked part j.

In Fig. 4, the window sash is provided with a strap u passing over a roller u on the upper edge of the inner panel of the door, so as to be operated and secured within the carriage in the usual manner. The supporting springs may be arranged to balance only a portion of the weight of the window and to allow the latter to fall when the strap is released, but I prefer to balance the entire weight and to arrange for the sash to be pulled down by hand to open the window.

Instead of employing springs in compression, the springs may be arranged to act in tension, and they may be located] at other suitable points than the. position shown in Figs. 1 and 2. For ex mple, Fig; 5 illus-' trates a tension spring e connecting the pivots ot the laZytOn'gs and thereby exerting a balancing pressurerto supportthe sash; Fig. 6 shows the use of compression springs e, whichinsteadof being threadedl on the guide rods a! :asfli'n Figs. land 2, are incased in slotted tubes'o, Within which the dies or sliders c 0 travel. Pivot pinsr tion. The tubes may be filledwith grease to lubricate the sliding parts.

"What I claim is the upper extremities of said lazy tongs, a guide tube securedto the bottom of said sash, said sliders reciprocable-insaid guide tube, and springs inclosedin said-tube acting upon said sliders.

2. A balanced window sash, comprising a lazy tongs device, a fixed pivot for the lower end of said lazy tongs, a guide tube secured means for operating said control rod"; affix my signatur to the bottom of said sash, said guide tube slotted longitudinally, sliders reciprocable in said slotted guide tube, springs inclosed in said slotted tube acting upon said sliders, and means for connecting said sliders to the upper extremities of said lazy tongs, said connecting means extending through the slotted portion of said guide tube.

3. A balanced window sash for vehicles, comprising a lazy-tongs device, a guide secured to the bottom of the sash, sliders reciprocable along said guide, said sliders connected to the upper extremitiesof said lazytongs, a fixed pivot for the lower extremities of said lazy-tongs, and springs acting upon said sliders, said springs being coaxial with said guide.

4. A balanced window sash, comprising a lazy tongs device, a guide secured to the bottom of the sash, sliders reciprocable along said guide, said sliders connected to the upper extremities of said lazy tongs, a fixed pivot for the lower extremities of said lazy tongs, springs acting upon said sliders to extend said lazy tongs, said springs being coaxial with said guide, a. control rod connected to said lazy tongs device, a rack upon said control rod, a pinion meshing with said rack, a roller supporting said rack in mesh with said pinion, and means for rotating {said pinion to'raise or lower the sash.

5.;A balanced window sash, comprising a I I I lazy tongs device, a fixed pivot for the lower project from thesliders through the lat-" 1 eral slots o" and engage the upperfendsot the lazy tongs as in the previous construe end" of said lazy tongs, a guide tube secured slotted longitudinally, sliders reciprocable in said slotted guide tube, springs inclosed [in said guide tube acting upon said..- I I saidsliders being connected to ti.

1. A balanced window sash,.comprising a lazy tongs device, a fixed'p ivctfor the lower end of said lazy t ongs,wsliders c onnected toends said lazy tongs and sai spr ngs tending to extend said lazy tongs, a ontrol rod connected to said lazy tongs dev cc, and

ln testimony whereof I in presence 0t two witnesses.

' "EMILE Miissis."

1 Witnesses VICTOR F. FEENY, CYRIL J. FEENY.

"iders," feper. 

